Bonaire • 2015 • episode "1/5" • Ocean Parks

53:45

The next programme explores the various sea-living invertebrates. In Morocco, the limestones are 600 million years old, and contain many invertebrate fossils. They fall broadly into three categories: shells, crinoids and segmented shells. The evolution of shelled creatures is demonstrated with the flatworm, which eventually changed its body shape when burrowing became a necessity for either food or safety. It then evolved shielded tentacles and the casings eventually enveloped the entire body: these creatures are the brachiopods. The most successful shelled animals are the molluscs, of which there are some 80,000 different species.

2/13 • Life on Earth • 1979 • Nature

48:03

Canada's Devon Island is the largest uninhabited island in the world--and with good reason. Temperatures below freezing for nine months of the year and an annual rainfall comparable to the Gobi Desert leave the icy landscape so barren that NASA uses it to simulate conditions on Mars. Take an exhilarating expedition into a land where only the most experienced Inuit hunters dare set foot.

2/8 • Arctic Secrets • 2015 • Nature

46:23

The name iSimangaliso means "Miracle" in Zulu--and the sheer number of species sustained by this diverse haven live up to this name. Explore this rare sanctuary, home to some of the world's most striking and iconic creatures, including the black rhino and the giant leatherback turtle.

3/9 • Great Parks of Africa • 2017 • Nature

23:11

The older a species, the better it is at adapting to change. From the ancient lineage of sharks, who've evolved into perfect predators, to the living fossil known as the bichir, get a closer look at some of nature's enduring evolutionary masters.

6/6 • Mysteries of Evolution • 2017 • Nature

53:29

The relationship between man and his noble steed is almost as old as civilization itself, allowing our species to explore, conquer and flourish side by side with the horse.

1/2 • Equus Story of the Horse • 2019 • Nature

21:49

While most of the series has focused on conflict, this episode is all about co-operation. The suitably named social spiders spin one enormous, 30m web for the whole colony, a queen bee rules her hive with a strict hierarchy and some green ants show great team spirit to help build a nest together. There are no broken societies here. David Attenborough shifts the focus to bugs that prefer cooperation rather than conflict. They include burrowing cockroaches, the suitably named social spiders - which share a 30-metre web.

5 • Micro Monsters with David Attenborough • 2013 • Nature